Dear Kurt, We are producing samples to be used as standard XRD (and neutron diffraction) reference materials for line profile analysis, QPA and also for energy calibration of synchrotron radiation. Our samples of Y2O3 were already characterized by conventional laboratory diffractometers and synchrotron and presented very good results. Although just now we have a small quantity (we are planning to produce a new lot soon) perhaps we can help you.
Luis Dr. Luis Gallego Martinez IPEN - Instituto de Pesquisas Energéticas e Nucleares CCTM - Centro de Ciência e Tecnologia de Materiais Av. Prof. Lineu Prestes 2242 - Cidade Universitária - USP São Paulo - SP - Brasil - CEP:05508-000 Tel: (+ 55 11) 3133-9222 - Fax: 3133-9276 VoIP Skype: lgmartinez [EMAIL PROTECTED] www.ipen.br ----- Original Message ----- From: Kurt Leinenweber To: rietveld_l@ill.fr Sent: Tuesday, October 14, 2008 8:17 PM Subject: source for Y2O3? Dear Rietvelders, In September there was a discussion of refining the polarization of an instrument, and Lachlan and Matthew both suggested Y2O3. The time has come to do the measurement, and I was wondering if anyone has suggestions for a good source and annealing schedule for the Y2O3? Is the already annealed material available as an XRD standard? Thank you very much, - Kurt ********* Kurt Leinenweber Dept. of Chemistry and Biochemistry Arizona State University Tempe, AZ 85287-1604 phone (480)-965-8853 fax (480)-965-2747 ***********